Formula field... translate from xls form?

Formula field... translate from xls form?

Hi
 
I have created a form in xls.
I need it to Work in Zcrm.... but the nerds are not here :-(
I tried to make a formula field (Currency).
Anybody?
 
=IF(YEAR(NOW())=YEAR(${Potentials.Contract Startup Date});VALUE(${Potentials.Price Installation})+VALUE(${Potentials.Sum/Month})*(12-MONTH(${Potentials.Contract Startup Date})+1);IF(YEAR(NOW())=YEAR(${Potentials.Contract End Date});VALUE(${Potentials.Sum/Month})*(MONTH(${Potentials.Contract End Date}));IF(AND(YEAR(${Potentials.Contract Startup Date})<YEAR(NOW());YEAR(NOW())<YEAR(${Potentials.Contract End
 
Regards
C